Abstract A system for speech correlation which comprises a coherent light modulating system which accepts a two-dimensional array of information corresponding to a speech spectrogram and superimposes this information two dimensionally on the cross section of a coherent light beam. The correlator further comprises means for imaging the modulated beam on a series of comparison means which correspond to words stored in a library. Preferably, the means provided is capable of simultaneously producing multiple images of the input so as to enable simultaneous comparison. Finally, means are provided for indicating correlation between the input and one of the words in the library. The method embodiment of this invention preferably comprises the steps of modulating the two-dimensional cross section of a coherent beam with speech spectrogram information, the depth of the modulation corresponding to intensity in the spectrogram. The method also includes the steps of comparing the modulated beam with a set of masks corresponding to a predetermined vocabulary and producing an indication whenever correlation occurs between the input and one of the words in the vocabulary.
Inventors
👤 Kendall Preston Jr
Bibliographic Details
Application Number—
JurisdictionUS
Data Sourcegoogle_patents
Last Synchronized2026-10-28 02:21
CPC Classifications
G; G10; G10L; G10L15/00; G10L15/24
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
86 words
An optical system for speech recognition comprising: means for producing a beam of coherent radiation; means for spatially modulating said beam according to information contained in a speech element; means for comparing said beam with a plurality of recorded speech elements comprising a hologram of an array of points for producing a plurality of images of said modulated beam; and means for producing an output indicative of a match between one of said images of said modulated beam and one of said plurality of recorded elements.
Claim 2
Dependent Claim
86 words
An optical system for speech recognition comprising: means for producing a beam of coherent radiation; means for spatially modulating said beam according to information contained in a speech element; means for comparing said beam with a plurality of recorded speech elements comprising a hologram of an array of points for producing a plurality of images of said modulated beam; and means for producing an output indicative of a match between one of said images of said modulated beam and one of said plurality of recorded elements.
Claim 3
Dependent Claim
30 words
An optical system as claimed in claim 1 and including an array of masks, each corresponding to a specific speech element, said array corresponding spatially to said array of points.
Claim 4
Dependent Claim
28 words
An optical system as claimed in claim 2 wherein said output-producing means comprises a radiation-sensitive means which produces an output corresponding to the spatial location of incident radiation.
Claim 5
Dependent Claim
30 words
An optical system as claimed in claim 2 wherein said modulating means comprises means for superimposing on said beam information from said speech element corresponding to frequency, intensity and time.
Claim 6
Dependent Claim
31 words
An optical system as claimed in claim 4 wherein said output-producing means comprises means for responding to a match between an image of said modulated beam and one of said masks.
Claim 7
Independent Claim
85 words
A method for optically analyzing sound comprising the steps of: providing a beam of coherent radiation; spatially modulating said beam according to information contained in a sound; providing a hologram of an array of points; directing the modulated beam through the hologram to produce a plurality of images of the modulated beam; comparing said plurality of images respectively with a plurality of masks corresponding to selected sounds; and producing an output indicative of a match between one of said images and one of said masks.
Claim 8
Independent Claim
85 words
A method for optically analyzing sound comprising the steps of: providing a beam of coherent radiation; spatially modulating said beam according to information contained in a sound; providing a hologram of an array of points; directing the modulated beam through the hologram to produce a plurality of images of the modulated beam; comparing said plurality of images respectively with a plurality of masks corresponding to selected sounds; and producing an output indicative of a match between one of said images and one of said masks.